asn.dev

Observed topology

AS20912 ASN-PANSERVICE

Residential RIPE Cable/DSL/ISP

Upstreams 10 carry this network
Downstreams 15 this network carries
Adjacent (IPv4) 23
Adjacent (IPv6) 15
Upstream graph Who carries AS20912, and who carries them, drawn as a map up to the transit-free core. 3 exchanges Where AS20912 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS20912: the AS immediately before it in a routing path. Ranked by how many paths showed the relationship, which reflects how widely it is used, not how much traffic crosses it.

ASNetworkTypeFamiliesPaths seen
AS174Cogent Communications, LLCTransitIPv4 IPv6433
AS6939Hurricane Electric LLCTransitIPv4 IPv6167
AS3257GTT Communications Inc.TransitIPv4131
AS9002RETN LimitedUnclassifiedIPv4 IPv658
AS24482SG.GSHostingIPv4 IPv615
AS3303Swisscom (Schweiz) AGResidentialIPv414
AS59919Brainbox S.r.l.ResidentialIPv414
AS31543myNet GmbHResidentialIPv411
AS12637SEEWEB s.r.l.HostingIPv62
AS13030Init7 (Switzerland) Ltd.HostingIPv61

Transit

Downstream networks

All 15

Networks for which AS20912 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS201127Fastfone s.r.l.UnclassifiedIPv4 IPv6846
AS212590Fivelink SrlUnclassifiedIPv4 IPv6151
AS60803Clio S.R.LUnclassifiedIPv4 IPv695
AS199181Orakom S.r.l.ResidentialIPv4 IPv685
AS202339SINET SRLUnclassifiedIPv4 IPv685
AS208920Rocket Way S.R.L.ResidentialIPv4 IPv672
AS56472Ampersand SrlResidentialIPv4 IPv662
AS35131Giuliano Claudio Peritore trading as "Panservice s.a.s. di Cuseo Fabrizio & C."ResidentialIPv457
AS206207Giuliano Claudio Peritore trading as "Panservice s.a.s. di Cuseo Fabrizio & C."UnclassifiedIPv447
AS15663Umbrianet S.R.L.UnclassifiedIPv427

All 15 downstreams →

Adjacency

Adjacent networks

All 26

Every AS seen directly next to AS20912 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS9002RETN LimitedUnclassifiedIPv4 IPv6907
AS201127Fastfone s.r.l.UnclassifiedIPv4 IPv6846
AS174Cogent Communications, LLCTransitIPv4 IPv6688
AS6939Hurricane Electric LLCTransitIPv4 IPv6561
AS3257GTT Communications Inc.TransitIPv4 IPv6211
AS56472Ampersand SrlResidentialIPv4 IPv6190
AS212590Fivelink SrlUnclassifiedIPv4 IPv6151
AS60803Clio S.R.LUnclassifiedIPv4 IPv695
AS199181Orakom S.r.l.ResidentialIPv4 IPv685
AS202339SINET SRLUnclassifiedIPv4 IPv685

All 26 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-11 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.47M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.

Inferred from path position, not from any declaration by either party. A network appearing here is carrying these routes; whether that is a paid transit arrangement, a backup, or something else is not something routing data can tell you. Adjacency is not the same as peering. Being next to each other in a path covers paid transit, settlement-free peering and customer connections alike, and routing data cannot distinguish them. Treat this as "these networks exchange routes", nothing more specific.

Cross-check against RIPEstat or BGP.tools, which observe from a different and larger set of vantage points.